Smooth hands/slow hands will reward the Grasshopper
I'd run the heat sleeve material on your lines and be done with it. Run the heat sleeve all the way up to the back of the fluid reservoir and run another piece on the pressure line coming from the front of the pump. Most of the installs I see with the heat shielding totally miss the two HOTTEST spot on the lines??
I know why. It takes some *effort* to remove the pump/hard lines and install the heat shielding where is actually needs to go!!!
The other reason you *probably* wont see a problem? You removed the AC compressor! The AC comp helps trap heat also on top of the engine. The pressure line snakes underneath the AC comp and is only a few mm's from the top of the engine block (where 200+ degree water is flowing)